公开(公告)号：US07604731B2

公开(公告)日：2009-10-20

申请号：US10892024

申请日：2004-07-15

申请人： Debasis Bhattacharyya ,  Satheesh Vetterkunnel Kumaran ,  Bandaru Venkata Hari Prasad Gupta ,  Pramod Kumar ,  Asit Kumar Das ,  Gadari Saidulu ,  Satyen Kumar Das ,  Gurpreet Singh Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

发明人： Debasis Bhattacharyya ,  Satheesh Vetterkunnel Kumaran ,  Bandaru Venkata Hari Prasad Gupta ,  Pramod Kumar ,  Asit Kumar Das ,  Gadari Saidulu ,  Satyen Kumar Das ,  Gurpreet Singh Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

IPC分类号： C10G51/02 ,  C10G9/00

CPC分类号： C10G9/005 ,  C10B55/00 ,  C10G51/023

摘要： A process is disclosed for producing needle coke from heavy atmospheric distillation residues having sulfur no more than 0.7 wt %, which process involves the steps of heating the feedstock to a temperature in the range of 440 to 520° C. for thermal cracking in a soaking column under pressure in the range of 1 to 10 kg/cm2 to separate the easily cokable material, separating the cracked products in a quench column and a distillation column and then subjecting the hydrocarbon fraction from the bottom of the quench column and a hydrocarbon fraction having a boiling point in the range of 380 to 480° C. from the distillation column and/or any other suitable heavier hydrocarbon streams in a definite ratio depending on certain characteristic parameters to thermal cracking in a second soaking column at a temperature of 460 to 540° C., pressure in the range of 2 to 20 kg/cm2 in presence of added quantity of steam for formation of a mesophase carbonaceous structure which on steam stripping and cooling forms a solid crystalline coke suitable for manufacturing of graphite electrode of large diameter having co-efficient of thermal expansion lower than 1.1×10−6/° C. measured on graphite artifact in the temperature range of 25 to 525° C.

摘要翻译： 公开了一种用于从具有不超过0.7重量％的硫的重大气压蒸馏残余物生产针状焦炭的方法，该方法包括将原料加热至440-520℃范围内的温度以进行浸泡中的热裂解 柱在1至10kg / cm2的压力范围内以分离容易结合的材料，将裂化产物在骤冷塔和蒸馏塔中分离，然后对来自骤冷塔的底部的烃馏分和具有 取决于某些特征参数与第二个均热塔中的热裂解在460至540℃的温度下，从蒸馏塔和/或任何其它合适的较重烃流中的沸点在380至480℃范围内 在蒸汽的形成中间相含碳结构的添加量存在下，在2至20kg / cm2的范围内的压力，在汽提和 冷却形成适用于制造热膨胀系数小于1.1×10 -6 /℃的大直径石墨电极的固体结晶焦炭，在25至525℃的温度范围内测量石墨伪影。

公开(公告)号：US07462275B2

公开(公告)日：2008-12-09

申请号：US10894341

申请日：2004-07-20

申请人： Asit Kumar Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Kumar Das ,  Bandaru Venkata Hari P. Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Lal Saroya ,  Konduri Lakshminarayana ,  Marri Rama Rao ,  Vinod Ramchandra Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Velayutham Karthikeyani ,  Wadharwa Ram Kalsi ,  Arvind Pratap Singh ,  Veena Bansal ,  Ashok Kumar Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

发明人： Asit Kumar Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Kumar Das ,  Bandaru Venkata Hari P. Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Lal Saroya ,  Konduri Lakshminarayana ,  Marri Rama Rao ,  Vinod Ramchandra Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Velayutham Karthikeyani ,  Wadharwa Ram Kalsi ,  Arvind Pratap Singh ,  Veena Bansal ,  Ashok Kumar Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raghunath Raje

IPC分类号： C10G67/00

CPC分类号： C10G11/05 ,  C10G2400/28

摘要： The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2 (g) and weight hourly space velocity in range of 0.1 to 20 hour−1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.

摘要翻译： 本发明涉及一种将95％真实沸点低于400℃的烃流转化成非常高产率的进料和高辛烷值汽油的45-65重量％的液化石油气的方法， 所述方法包括使用固体可流化催化剂催化裂化烃，所述固体可流化催化剂包含具有或不具有Y-沸石的中孔结晶铝硅酸盐，非结晶酸性物质或其组合，其在400至550℃的温度范围内操作的流化密床反应器 ℃，压力范围为2至20kg / cm2（g）和0.1至20小时-1范围内的重时空速，其中所述致密床反应器与用于连续的催化剂汽提塔和再生器流动连通 在存在空气和/或含氧气体的情况下再生焦化的催化剂，催化剂在反应器 - 再生器系统之间连续循环。

公开(公告)号：US20070181462A2

公开(公告)日：2007-08-09

申请号：US10892024

申请日：2004-07-15

申请人： Debasis Bhattacharyya ,  Satheesh Kumaran ,  Bandaru Prasad Gupta ,  Pramod Kumar ,  Asit Das ,  Gadari Saidulu ,  Satyen Das ,  Gurpreet Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

发明人： Debasis Bhattacharyya ,  Satheesh Kumaran ,  Bandaru Prasad Gupta ,  Pramod Kumar ,  Asit Das ,  Gadari Saidulu ,  Satyen Das ,  Gurpreet Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

IPC分类号： C10G51/02 ,  C10G9/00

CPC分类号： C10G9/005 ,  C10B55/00 ,  C10G51/023

摘要： A process is disclosed for producing needle coke from heavy atmospheric distillation residues having sulfur no more than 0.7 wt %, which process involves the steps of heating the feedstock to a temperature in the range of 440 to 520° C. for thermal cracking in a soaking column under pressure in the range of 1 to 10 kg/cm2 to separate the easily cokable material, separating the cracked products in a quench column and a distillation column and then subjecting the hydrocarbon fraction from the bottom of the quench column and a hydrocarbon fraction having a boiling point in the range of 380 to 480° C. from the distillation column and/or any other suitable heavier hydrocarbon streams in a definite ratio depending on certain characteristic parameters to thermal cracking in a second soaking column at a temperature of 460 to 540° C., pressure in the range of 2 to 20 kg/cm2 in presence of added quantity of steam for formation of a mesophase carbonaceous structure which on steam stripping and cooling forms a solid crystalline coke suitable for manufacturing of graphite electrode of large diameter having co-efficient of thermal expansion lower than 1.1×10−6/° C. measured on graphite artifact in the temperature range of 25 to 525° C.

摘要翻译： 公开了一种用于从具有不超过0.7重量％的硫的重大气压蒸馏残余物生产针状焦炭的方法，该方法包括将原料加热至440-520℃范围内的温度以进行浸泡中的热裂解 柱在1至10kg / cm 2范围内的压力下分离易分解的易吸收材料，将裂化产物在骤冷塔和蒸馏塔中分离，然后将来自底部的烃馏分 骤冷塔和具有沸点在380-480℃范围内的沸点在380-480℃范围内的烃馏分和/或任何其它合适的较重的烃流以一定的比例取决于某些特征参数与第二次均热中的热裂解 在460至540℃的温度下，在存在用于形成中间相碳质结构的添加量的蒸汽的存在下，在2至20kg / cm 2范围内的压力，其中 在蒸汽汽提和冷却时，形成适用于制造热膨胀系数小于1.1×10 -6 /℃的大直径石墨电极的固体结晶焦炭，其温度在石墨伪影上测量 范围为25至525℃

公开(公告)号：US20050284793A1

公开(公告)日：2005-12-29

申请号：US10892024

申请日：2004-07-15

申请人： Debasis Bhattacharyya ,  Satheesh Kumaran ,  Bandaru Prasad Gupta ,  Pramod Kumar ,  Asit Das ,  Gadari Saidulu ,  Satyen Das ,  Gurpreet Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

发明人： Debasis Bhattacharyya ,  Satheesh Kumaran ,  Bandaru Prasad Gupta ,  Pramod Kumar ,  Asit Das ,  Gadari Saidulu ,  Satyen Das ,  Gurpreet Kapur ,  Veena Bansal ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

IPC分类号： C10B55/00 ,  C10B57/02 ,  C10G9/00 ,  C10G51/02

CPC分类号： C10G9/005 ,  C10B55/00 ,  C10G51/023

摘要： A process is disclosed for producing needle coke from heavy atmospheric distillation residues having sulfur no more than 0.7 wt %, which process involves the steps of heating the feedstock to a temperature in the range of 460 to 540° C. for thermal cracking in a soaking column under pressure in the range of 1 to 10 kg/cm2 to separate the easily cokable material, separating the cracked products in a quench column and a distillation column and then subjecting the hydrocarbon fraction from the bottom of the quench column and a heavy gas oil fraction having 10% true boiling point more than 370° C. and 90% true boiling point not less than 480° C. from the distillation column and/or any other suitable heavier hydrocarbon streams in a definite ratio depending on certain characteristic parameters to thermal cracking in a second soaking column at a temperature of 440 to 520° C., pressure in the range of 2 to 20 kg/cm2 in presence of added quantity of steam for formation of a mesophase carbonaceous structure which on steam stripping and cooling forms a solid crystalline coke suitable for manufacturing of graphite electrode of large diameter having co-efficient of thermal expansion lower than 1.1×10−6/° C. measured on graphite artifact in the temperature range of 25 to 525° C.

摘要翻译： 公开了一种用于从具有不超过0.7重量％的硫的重大气压蒸馏残余物生产针状焦炭的方法，该方法包括将原料加热至在460至540℃范围内的温度以进行浸泡中的热裂解 柱在1至10kg / cm 2范围内的压力下分离易分解的易溶材料，将裂化产物在骤冷塔和蒸馏塔中分离，然后将来自底部的烃馏分 淬火塔和具有10％真实沸点大于370℃的重质瓦斯油馏分和来自蒸馏塔和/或任何其它合适的较重烃流的确定的90％真实沸点不低于480℃ 的比例取决于某些特征参数与第二均热塔中的热裂解在440至520℃的温度下，在2至20kg / cm 2范围内的压力，在加入量 蒸汽格式化 n的中间相碳质结构，其在蒸汽汽提和冷却时形成适于制造热膨胀系数小于1.1×10 -6 /℃的大直径石墨电极的固体结晶焦炭。 在25至525℃的温度范围内测量石墨伪影。

公开(公告)号：US20060016725A1

公开(公告)日：2006-01-26

申请号：US10894341

申请日：2004-07-20

申请人： Asit Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Das ,  Bandaru Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Saroya ,  Konduri Lakshminarayana ,  Marri Rao ,  Vinod Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Karthikeyani ,  Wadharwa Kalsi ,  Arvind Singh ,  Veena Bansal ,  Ashok Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

发明人： Asit Das ,  Debasis Bhattacharyya ,  Gadari Saidulu ,  Satayen Das ,  Bandaru Gupta ,  Ramakrishnan Ramanarayanan ,  Latoor Saroya ,  Konduri Lakshminarayana ,  Marri Rao ,  Vinod Upadhyay ,  Sukumar Mandal ,  Deepa Meghavathu ,  Arumugam Karthikeyani ,  Wadharwa Kalsi ,  Arvind Singh ,  Veena Bansal ,  Ashok Tiwari ,  Venkatachalam Krishnan ,  Satish Makhija ,  Sobhan Ghosh ,  Niranjan Raje

IPC分类号： C10G67/00

CPC分类号： C10G11/05 ,  C10G2400/28

摘要： The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2(g) and weight hourly space velocity in range of 0.1 to 20 hour−1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.

摘要翻译： 本发明涉及一种将95％真实沸点低于400℃的烃流转化成非常高产率的进料和高辛烷值汽油的45-65重量％的液化石油气的方法， 所述方法包括使用固体可流化催化剂催化裂化烃，所述固体可流化催化剂包含具有或不具有Y-沸石的中孔结晶铝硅酸盐，非结晶酸性物质或其组合，其在400至550℃的温度范围内操作的流化密床反应器 ℃，压力范围为2至20kg / cm 2（g），重时空速为0.1至20小时的范围，其中所述致密的 床反应器与催化剂汽提器和再生器流动连通，用于在存在空气和/或含氧气体的情况下连续再生焦化催化剂，催化剂在反应器 - 再生器系统之间连续循环。

公开(公告)号：US08840846B2

公开(公告)日：2014-09-23

申请号：US13638509

申请日：2011-03-30

申请人： Debasis Bhattacharyya ,  Gadari Saidulu ,  Arumugam Velayutham Karthikeyani ,  Pankaj Kasliwal ,  Bandaru Venkata Hari Prasad Gupta ,  Ram Mohan Thakur ,  Jagdev Kumar Dixit ,  Sudipta Roy ,  Ganga Shanker Mishra ,  Satyen Kumar Das ,  Santanam Rajagopal

发明人： Debasis Bhattacharyya ,  Gadari Saidulu ,  Arumugam Velayutham Karthikeyani ,  Pankaj Kasliwal ,  Bandaru Venkata Hari Prasad Gupta ,  Ram Mohan Thakur ,  Jagdev Kumar Dixit ,  Sudipta Roy ,  Ganga Shanker Mishra ,  Satyen Kumar Das ,  Santanam Rajagopal

IPC分类号： B01J8/00 ,  C10G11/18 ,  C10G25/00 ,  C10G25/12 ,  C10G55/06 ,  B01J7/00 ,  B01J8/18 ,  B01J19/00 ,  B01J19/24 ,  B01J35/00 ,  B01J35/02 ,  C10G1/00

CPC分类号： C10G11/18 ,  C10G25/00 ,  C10G25/12 ,  C10G55/06 ,  C10G2300/201 ,  C10G2300/4093 ,  C10G2400/02 ,  C10G2400/20 ,  C10G2400/28

摘要： An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.

摘要翻译： 用于原料催化裂化的装置包括第一通道，其中用吸附剂处理原料以获得经处理的中间体。 该装置还包括分离器 - 反应器容器。 分离器 - 反应器容器包括吸附剂分离区域以从被处理的中间体中除去吸附剂。 分离器 - 反应器容器还包括连接到吸附剂分离区的第二通道。 处理的中间体与第二通道中的催化剂接触以产生裂解产率。 第二通道终止于分离器 - 反应器容器的催化剂分离区域。 催化剂从催化剂分离区域的裂解产率中除去。 分离器 - 反应器容器还包括设置在吸附剂分离区域和催化剂分离区域之间以分离两个区域的物理隔离物。

公开(公告)号：US20130020234A1

公开(公告)日：2013-01-24

申请号：US13638509

申请日：2011-03-30

申请人： Debasis Bhattacharyya ,  Gadari Saidulu ,  Arumugam Velayutham Karthikeyani ,  Pankaj Kasliwal ,  Bandaru Venkata Hari Prasad Gupta ,  Ram Mohan Thakur ,  Jagdev Kumar Dixit ,  Sudipta Roy ,  Ganga Shanker Mishra ,  Satyen Kumar Das ,  Santanam Rajagopal

发明人： Debasis Bhattacharyya ,  Gadari Saidulu ,  Arumugam Velayutham Karthikeyani ,  Pankaj Kasliwal ,  Bandaru Venkata Hari Prasad Gupta ,  Ram Mohan Thakur ,  Jagdev Kumar Dixit ,  Sudipta Roy ,  Ganga Shanker Mishra ,  Satyen Kumar Das ,  Santanam Rajagopal

IPC分类号： C10G55/06 ,  B01J8/00

CPC分类号： C10G11/18 ,  C10G25/00 ,  C10G25/12 ,  C10G55/06 ,  C10G2300/201 ,  C10G2300/4093 ,  C10G2400/02 ,  C10G2400/20 ,  C10G2400/28

摘要： An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.

摘要翻译： 用于原料催化裂化的装置包括第一通道，其中用吸附剂处理原料以获得经处理的中间体。 该装置还包括分离器 - 反应器容器。 分离器 - 反应器容器包括吸附剂分离区域以从被处理的中间体中除去吸附剂。 分离器 - 反应器容器还包括连接到吸附剂分离区的第二通道。 处理的中间体与第二通道中的催化剂接触以产生裂解产率。 第二通道终止于分离器 - 反应器容器的催化剂分离区域。 催化剂从催化剂分离区域的裂解产率中除去。 分离器 - 反应器容器还包括设置在吸附剂分离区域和催化剂分离区域之间以分离两个区域的物理隔离物。

公开(公告)号：US09434892B2

公开(公告)日：2016-09-06

申请号：US13808835

申请日：2011-07-04

申请人： Ponoly Ramachandran Pradeep ,  Sadhullah Mukthiyar ,  Gadari Saidulu ,  Debasis Bhattacharyya ,  Vetterkunnel Kumaran Satheesh

发明人： Ponoly Ramachandran Pradeep ,  Sadhullah Mukthiyar ,  Gadari Saidulu ,  Debasis Bhattacharyya ,  Vetterkunnel Kumaran Satheesh

IPC分类号： C10G51/00 ,  C10G51/02 ,  C10G11/18

CPC分类号： C10G51/026 ,  C10G11/18 ,  C10G2300/207 ,  C10G2300/301 ,  C10G2300/4093 ,  C10G2300/807 ,  C10G2400/02 ,  C10G2400/20

摘要： A two stage Fluid Catalytic Cracking process and an apparatus for simultaneous production of light olefins such as ethylene and propylene and middle distillate range hydrocarbons, wherein a first flow reactor, preferably a downer and a second flow reactor, preferably a riser are operating at varying reaction severities using different catalyst systems with the regenerated catalyst entering the reactors inlet through independent regenerators. Mild cracking of the fresh feedstock is carried out in the first flow reactor of short residence time and the effluent of first flow reactor is separated in an intermediate separator/fractionator followed by re-cracking of the C4 hydrocarbons and naphtha range hydrocarbons, preferably C5-150° C. from the second product separation section and unconverted hydrocarbons (370° C.+) of first flow reactor, in the second flow reactor at higher severity employing different catalyst system.

摘要翻译： 两级流体催化裂化方法和用于同时生产轻质烯烃如乙烯和丙烯以及中间馏分烃类的装置，其中第一流动反应器，优选下流式和第二流动反应器，优选提升管以变化的反应 使用不同催化剂体系的严重性，再生催化剂通过独立的再生器进入反应器入口。 新鲜原料的轻度裂化在短停留时间的第一流化反应器中进行，第一流动反应器的流出物在中间分离器/分馏器中分离，随后重新开裂C4烃和石脑油烃，优选C5- 在第二流动反应器中，来自第二产物分离段的150℃和未转化的烃（370℃+），在第二流动反应器中采用不同的催化剂体系。